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Can the total angular momentum of u-quarks in the nucleon be accessed at HERMES?
We investigate the possibility of acquiring information on the generalized parton distribution E and, through a model for E, also on the u-quark total angular momentum Ju by studying deeply virtual Compton scattering and hard exclusive ρ0 electroproduction on a transversely polarized hydrogen target...
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Published in: | The European physical journal. C, Particles and fields Particles and fields, 2006-06, Vol.46 (3), p.729-739 |
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Main Authors: | , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | We investigate the possibility of acquiring information on the generalized parton distribution E and, through a model for E, also on the u-quark total angular momentum Ju by studying deeply virtual Compton scattering and hard exclusive ρ0 electroproduction on a transversely polarized hydrogen target at HERMES. It is found that a change in Ju from zero to 0.4 corresponds to a 4σ (2σ) difference in the calculated transverse target-spin asymmetry in deeply virtual Compton scattering (ρ0 electroproduction), where σ is the total experimental uncertainty. |
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ISSN: | 1434-6044 1434-6052 |
DOI: | 10.1140/epjc/s2006-02529-3 |